72.73% is the change from 11 to 19
Calculation steps:
[( 19 - 11 ) ÷ 11] x 100 = 72.73%
Formula
Percentage change = [(19 - 11) / 11] x 100
Subtract the new number by the original number
19 - 11 = 8
8 ÷ 11 = 0.7272727272727273
0.7272727272727273 x 100 = 72.73%